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Propeller

San Francisco Bay Area, US · 9 known investors

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Propeller Bio discovers and develops biologic therapeutics that target multiple disease-driving pathways to achieve synergistic effects, aimed at patients with unmet medical needs. The company operates in the drug discovery and development space and is based in the Bay Area, California.

Biotech

Founders & leadership

DWDavid W. Shen
David W. ShenFounderDavid W. Shen founded Propeller Bio in 2025 after leading Proteologix as CEO until its 2024 acquisition by Johnson & Johnson for $850 million; he previously held executive positions at NGM Biopharmaceuticals, Teva Pharmaceuticals, Merck, and Amgen, where he contributed to the development of multiple approved antibody therapeutics including evolocumab, romosozumab, and denosumab.

Investors · 9

OrbiMedlisted by OrbiMedNew York · $1M – $75M
Blackbird VenturesreportedSydney · $149K – $60M

How we know: newswire.com · Not right? Tell us

McKesson VenturesreportedSan Francisco

How we know: funding news · press coverage · Not right? Tell us

Also in the syndicate · 5

Aware SuperBlackbirdleadCostanoaleadSanielSequoia China

Funding

SEC filings, press & company announcements

Source: company announcements and press reports — follow each round's link for the claim.

Frequently asked questions

What does Propeller do?
Propeller Bio discovers and develops biologic therapeutics that target multiple disease-driving pathways to achieve synergistic effects, aimed at patients with unmet medical needs. The company operates in the drug discovery and development space and is based in the Bay Area, California.
Who founded Propeller?
Propeller was founded by David W. Shen.
Who are Propeller's investors?
Propeller's investors include Foresite Capital, OrbiMed, Blackbird Ventures, McKesson Ventures.
Where is Propeller headquartered?
Propeller is headquartered in San Francisco Bay Area, US.